OK, after getting the pata to sata mod to 500 gig.with an adapter I had no trouble with the ATV. I did another mod with nylon pillars and longer screws and this lowered the internal temp by 18 degrees F. As it is jail broken I used the USB to connect it to a cooling pad. My latest mod was to remove the internal PCU and build an external 20A 5v PCU and power it externally reducing heat and gaining better stability. After the mod it would not boot so I replaced the adapter that allowed me to use a sata drive as they can go bad easily. Everything worked perfectly till I plugged in the fan pad with the apple running and the screen went black and the music stopped, I even tried a restore but it just won't boot. The light go's to solid white and it dose a purple, blue then black display with the apple logo. What the heck is going on the supply is running 5V and the brown wired to + Blue to - so all should be peachy right? Pictures of the set up when it was running as my music server.The last picture is an older one just to show Apple white speakers. I have no idea what to do next? Could this be a Hard Drive issue or something more ominous? Some one must have run into this before me?